CN109899251B - Wind power rotation connecting device - Google Patents
Wind power rotation connecting device Download PDFInfo
- Publication number
- CN109899251B CN109899251B CN201910289433.6A CN201910289433A CN109899251B CN 109899251 B CN109899251 B CN 109899251B CN 201910289433 A CN201910289433 A CN 201910289433A CN 109899251 B CN109899251 B CN 109899251B
- Authority
- CN
- China
- Prior art keywords
- bearing
- pitch
- frame
- main shaft
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a wind power bearing, in particular to a wind power rotation connecting device, which comprises a main shaft bearing assembly, wherein the main shaft bearing assembly is annularly arranged around the axis of a wind power main shaft, and the main shaft bearing assembly is arranged between the wind power main shaft and a main shaft bracket; the blade bearing assemblies are arranged in an annular array around the axis of the blade seat, and are arranged between the blade seat and the variable-pitch turntable; the rack bearing assemblies are arranged in an annular array around the axis of the rack turntable, and are positioned between the rack turntable and the rack seat. The wind power rotation connecting device provided by the invention has the advantages of low cost, stable and reliable structure, convenience in processing and installation and long service life.
Description
Technical Field
The invention relates to a wind power bearing, in particular to a wind power rotation connecting device.
Background
The existing main shaft bearing, pitch bearing and yaw bearing of the wind generating set are large-scale special bearings, the diameter of the bearing is large, the precision and load requirements are high, the processing difficulty is high, the domestic bearing cannot meet the use requirements, and the imported bearing is high in price.
Disclosure of Invention
In order to solve the problems, the invention provides a wind power rotation connection device capable of reducing bearing cost, which comprises the following specific technical scheme:
The wind power rotation connecting device comprises a main shaft bearing assembly, wherein the main shaft bearing assembly is arranged in an annular array around the axis of a wind power main shaft, and the main shaft bearing assembly is arranged between the wind power main shaft and a main shaft bracket; the blade bearing assemblies are arranged in an annular array around the axis of the blade seat, and are arranged between the blade seat and the variable-pitch turntable; the rack bearing assemblies are arranged in an annular array around the axis of the rack turntable, and are positioned between the rack turntable and the rack seat.
By adopting the technical scheme, the main shaft bearing assembly, the blade bearing assembly and the frame bearing assembly respectively form a large-diameter bearing for replacing the imported large-diameter bearing, so that the cost is reduced.
Preferably, the main shaft bearing assembly comprises a main shaft roller, wherein an annular rolling groove is formed in the main shaft roller, and the main shaft roller is annularly arranged around the axis of the wind power main shaft in an array manner; the driving shaft is fixed at two ends of the main shaft idler wheel and is coaxial with the main shaft idler wheel; the inner ring of the main shaft bearing is fixed on the driving shaft and positioned at two sides of the main shaft roller; the bearing fixing seat is provided with a roller groove and bearing fixing grooves, the bearing fixing grooves are positioned on two sides of the bearing fixing seat, a main shaft bearing is arranged in the bearing fixing grooves, the roller groove is communicated with the bearing fixing grooves, and the main shaft roller is positioned in the roller groove; an annular main rollaway nest is arranged on the outer circular surface of the wind power main shaft and is matched with the rollaway nest; the wind power main shaft is characterized in that a main shaft hole is formed in the main shaft support, the wind power main shaft is located in the main shaft hole, support fixing grooves are formed in the main shaft hole and are arranged in an annular array along the axis of the main shaft hole, and the bearing fixing base is installed in the support fixing grooves.
Through adopting above-mentioned technical scheme, the axial float of restriction main shaft on the main raceway of main shaft gyro wheel card, the rotation connection between main shaft gyro wheel realization wind-powered electricity generation main shaft and the main shaft support need not to use the bearing of super large diameter, adopts standard little bearing, very big reduction the cost, still make simple to operate to it is convenient to maintain, only need dismantle the bearing fixing base change little bearing or main shaft gyro wheel can.
Preferably, the bracket fixing groove is a through groove, and the depth of the bracket fixing groove is larger than the thickness of the bearing fixing seat; still include the fixing base baffle, the fixing base baffle is installed at the both ends of main shaft support, and the fixing base baffle is located the both ends of support fixed slot, the support fixed slot is logical groove, pass through bolted connection between fixing base baffle and the bearing fixing base.
Through adopting above-mentioned technical scheme, the installation of fixing base baffle convenience bearing fixing base makes simple to operate swift to the fixing base baffle is used for restricting wind-powered electricity generation main shaft's axial float.
Preferably, the device further comprises an adjusting block, wherein an adjusting inclined plane is arranged on the adjusting block, and the adjusting block is positioned in the bracket fixing groove and between the bottom of the bracket fixing groove and the bearing fixing seat; the adjusting screw is arranged on the fixed seat baffle plate, and the end part of the adjusting screw is pressed at one end of the adjusting block; the bearing fixing seat is provided with a sliding inclined plane, the sliding inclined plane is matched with the adjusting inclined plane, the adjusting inclined plane is in sliding connection with the sliding inclined plane, and the adjusting screw is used for pushing the adjusting block to compress the bearing fixing seat.
By adopting the technical scheme, the adjusting block is used for adjusting the position of the main shaft roller, so that the main shaft roller is pressed on the main roller path, the adjustment is convenient, and the adjustment time is saved.
Preferably, the main shaft bearing is any one or any two or more of a deep groove ball bearing, a self-aligning ball bearing, an angular contact bearing, a self-aligning roller bearing, a double-row tapered roller bearing, a thrust ball bearing, a thrust cylindrical roller bearing and a thrust tapered roller bearing.
Preferably, the main roller path and the wind power main shaft are split, and the main roller path is fixed on the wind power main shaft through screws.
Through adopting above-mentioned technical scheme, can be before the installation wind-powered electricity generation main shaft with main raceway and main shaft bearing subassembly debug, the later stage is direct with main raceway fix on wind-powered electricity generation main shaft can, very big simplified the installation process, make simple to operate swift, shorten high altitude construction time, improved the security.
Preferably, two spindle supports are provided, and the two spindle supports are arranged in parallel.
By adopting the technical scheme, the stability of the two main shaft brackets can be effectively improved.
Preferably, the blade bearing assembly comprises a variable-pitch shaft, the variable-pitch shaft is fixed on the inner circular surface of the blade seat, the axis of the variable-pitch shaft is perpendicular to the axis of the blade seat, the variable-pitch shaft is annularly arranged around the axis of the blade seat in an array manner, and an upper circle and a lower circle are parallelly arranged; the inner ring of the variable-pitch bearing is fixed on the variable-pitch shaft; the pitch roller is fixed on the outer ring of the pitch bearing; the variable-pitch wheel is characterized in that the blade seat is fixed on the hub, the variable-pitch turntable is rotatably arranged on the blade seat, a variable-pitch rolling way is arranged on the outer circular surface of the variable-pitch turntable, the variable-pitch rolling wheels are respectively positioned on two sides of the variable-pitch rolling way, the variable-pitch rolling wheels are tightly pressed on the variable-pitch rolling way, and the variable-pitch turntable is provided with blades.
Through adopting above-mentioned technical scheme, become oar gyro wheel with become oar carousel restriction and rotate on the paddle seat to realize replacing super large-scale bearing.
The bearings are arranged on the two sides of the pitch rolling path, so that the blade bearing can be effectively prevented from moving, and the axial bearing capacity is provided, so that the service life of the bearing is effectively ensured.
Preferably, the pitch roller is a conical roller, the cross section of the pitch roller path is isosceles triangle, and the pitch roller path is matched with the pitch roller.
Through adopting above-mentioned technical scheme, the conical roller can improve positioning accuracy, effectively guarantees that the paddle rotates around the axis of paddle seat, prevents to discover radial displacement.
Preferably, the pitch bearing is one or any two or more of a deep groove ball bearing, a self-aligning ball bearing, an angular contact bearing, a self-aligning roller bearing and a double-row tapered roller bearing.
Preferably, an upper bearing mounting hole and a lower bearing mounting hole are respectively arranged on the pitch-controlled turntable, the upper bearing mounting hole penetrates through the pitch-controlled raceway, and the lower bearing mounting hole penetrates through the pitch-controlled raceway; the device also comprises a variable-pitch upper dismounting rollaway nest and a variable-pitch lower dismounting rollaway nest; the variable-pitch upper dismounting rollaway nest is arranged in the upper bearing mounting hole, and the variable-pitch upper dismounting rollaway nest and the variable-pitch rollaway nest form a complete variable-pitch rollaway nest; the lower variable-pitch dismounting rollaway nest is arranged on the lower bearing mounting hole, and the lower variable-pitch dismounting rollaway nest and the variable-pitch rollaway nest form a complete variable-pitch rollaway nest.
Through adopting above-mentioned technical scheme, upper bearing mounting hole and lower bearing mounting hole are convenient with become oar gyro wheel and are installed between oar carousel and the paddle seat.
Preferably, the rack bearing assembly comprises a rack shaft, the rack shaft is fixed on the inner circular surface of the rack seat, the axis of the rack shaft is perpendicular to the axis of the rack seat, the rack shaft is annularly arranged around the axis of the rack seat, and an upper ring of rack shafts and a lower ring of rack shafts which are parallel are arranged; the inner ring of the rack bearing is fixed on the rack shaft; the rack roller is fixed on the outer ring of the rack bearing; the frame seat is fixed at the top of the tower, the frame turntable is rotatably arranged on the frame seat, a frame rollway is arranged on the outer circular surface of the frame turntable, the frame rollers are respectively positioned at two sides of the frame rollway, and the frame rollers are tightly pressed on the frame rollway.
Preferably, the frame roller is a conical roller, the cross section of the frame roller path is isosceles triangle, and the frame roller path is matched with the frame roller.
Preferably, the frame turntable is respectively provided with an upper frame bearing mounting hole and a lower frame bearing mounting hole,
The upper frame bearing mounting hole penetrates through the frame roller path, and the lower frame bearing mounting hole penetrates through the frame roller path; the device also comprises a rack upper dismounting rollaway nest and a rack lower dismounting rollaway nest; the upper dismounting rollaway nest of the stand is arranged in the upper stand bearing mounting hole, and the upper dismounting rollaway nest of the stand and the stand rollaway nest form a complete stand rollaway nest; the lower frame dismounting rollaway nest is arranged on the lower frame bearing mounting hole, and the lower frame dismounting rollaway nest and the frame rollaway nest form a complete frame rollaway nest.
Compared with the prior art, the invention has the following beneficial effects:
The wind power rotation connecting device provided by the invention has the advantages of low cost, stable and reliable structure, convenience in processing and installation, long service life, and simplicity and convenience in replacing the bearing because the adopted bearings are standard products, are low in price and long in service life, and can be disassembled and assembled in the engine room during maintenance.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic structural view of a spindle bearing assembly in an annular array about the axis of a wind power spindle, concealing a portion of a fixed seat baffle;
FIG. 3 is an exploded view of a spindle bearing assembly;
FIG. 4 is a schematic diagram of the assembled structure of the main shaft bearing assembly, main raceway, fixed seat shield and adjustment block;
FIG. 5 is a schematic structural view of a spindle carrier;
FIG. 6 is an assembly structural schematic of a wind power main shaft and a main raceway;
FIG. 7 is a schematic view of an assembled configuration of a blade bearing assembly on a hub;
FIG. 8 is a schematic cross-sectional view taken along line B-B in FIG. 7;
FIG. 9 is a schematic view of a pitch bearing and pitch roller mounted on a pitch disk;
FIG. 10 is a schematic cross-sectional view of FIG. 9;
FIG. 11 is a schematic structural view of a blade mount;
FIG. 12 is a schematic illustration of the mounting of a frame bearing assembly to a frame mount;
FIG. 13 is a schematic cross-sectional view of the assembly of the frame bearing assembly with the frame turntable and the frame mount;
fig. 14 is a schematic view of the structure of the gantry turntable.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
As shown in FIG. 1, the main shaft bearing assembly, the blade bearing assembly and the frame bearing assembly respectively form a large-diameter bearing for replacing an imported large-diameter bearing, so that the cost is effectively reduced, and meanwhile, the installation and the maintenance are convenient.
As shown in fig. 1 to 6, the wind power rotation connection device comprises a main shaft bearing assembly, wherein the main shaft bearing assembly is arranged in an annular array around the axis of a wind power main shaft 12, and the main shaft bearing assembly is arranged between the wind power main shaft 12 and a main shaft bracket 11; the blade bearing assemblies are arranged in an annular array around the axis of the blade seat 31, and are arranged between the blade seat 31 and the variable-pitch turntable 32; the frame bearing assemblies are arranged in an annular array around the axis of the frame turntable 45, and the frame bearing assemblies are located between the frame turntable 45 and the frame base 41.
The spindle bracket 11 is fixed to a main frame stand 14.
Specifically, the main shaft bearing assembly comprises a main shaft roller 23, an annular rolling groove 231 is formed in the main shaft roller 23, and the main shaft roller 23 is annularly arranged around the axis of the wind power main shaft 12; the driving shaft 232, the driving shaft 232 is fixed at two ends of the main shaft roller 23, and the driving shaft 232 and the main shaft roller 23 are coaxial; the main shaft bearing 24, the inner ring of the main shaft bearing 24 is fixed on the driving shaft 232 and is positioned at two sides of the main shaft roller 23; the bearing fixing seat 22 is provided with a roller groove 221 and a bearing fixing groove 222, the bearing fixing groove 222 is positioned at two sides of the bearing fixing seat 22, a main shaft bearing 24 is arranged in the bearing fixing groove 222, the roller groove 221 is communicated with the bearing fixing groove 222, and the main shaft roller 23 is positioned in the roller groove 221; an annular main roller path 21 is arranged on the outer circular surface of the wind power main shaft 12, and the main roller path 21 is matched with the roller groove 221; the main shaft support 11 is provided with a main shaft hole 112, the wind power main shaft 12 is positioned in the main shaft hole 112, the main shaft hole 112 is provided with support fixing grooves 111, the support fixing grooves 111 are arranged in an annular array along the axis of the main shaft hole 112, and the bearing fixing seat 22 is arranged in the support fixing grooves 111.
The main shaft roller 23 is clamped on the main roller path 21 to limit the axial movement of the wind power main shaft 12, the main shaft roller 23 realizes the rotary connection between the wind power main shaft 12 and the main shaft bracket 11, an oversized-diameter bearing is not required, a standard small bearing is adopted, the cost is greatly reduced, the installation is convenient, the maintenance is convenient, and only the small bearing or the main shaft roller 23 is required to be replaced by detaching the bearing fixing seat 22.
The bracket fixing groove 111 is a through groove, and the depth of the bracket fixing groove 111 is larger than the thickness of the bearing fixing seat 22; still include fixing base baffle 25, fixing base baffle 25 installs the both ends at main shaft support 11, and fixing base baffle 25 is located the both ends of support fixed slot 111, and support fixed slot 111 is logical groove, passes through bolted connection between fixing base baffle 25 and the bearing fixing base 22.
The fixed seat baffle 25 is in a fan shape and is annularly arranged around the spindle hole 112. The fixing seat baffle 25 facilitates the installation of the bearing fixing seat 22, so that the installation is convenient and quick, and the fixing seat baffle 25 is used for limiting the axial movement of the wind power main shaft 12.
The device also comprises an adjusting block 26, wherein an adjusting inclined surface 223 is arranged on the adjusting block 26, and the adjusting block 26 is positioned in the bracket fixing groove 111 and between the bottom of the bracket fixing groove 111 and the bearing fixing seat 22; the adjusting screw 27 is arranged on the fixed seat baffle 25, and the end part of the adjusting screw 27 is pressed at one end of the adjusting block 26; the bearing fixing seat 22 is provided with a sliding inclined plane which is matched with the adjusting inclined plane 223, the adjusting inclined plane 223 is in sliding connection with the sliding inclined plane, and the adjusting screw 27 is used for pushing the adjusting block 26 to press the bearing fixing seat 22.
The adjusting block 26 is used for adjusting the position of the main shaft roller 23, so that the main shaft roller 23 is pressed on the main roller path 21, the adjustment is convenient, and the adjustment time is saved.
The spindle bearing 24 is one or any two or more of a deep groove ball bearing, a self-aligning ball bearing, an angular contact bearing, a self-aligning roller bearing, a double-row tapered roller bearing, a thrust ball bearing, a thrust cylindrical roller bearing and a thrust tapered roller bearing. The deep groove ball bearing, the self-aligning ball bearing, the angular contact bearing, the self-aligning roller bearing and the double-row tapered roller bearing can bear axial and radial forces at the same time, and the use requirements of the bearing are met. Furthermore, the self-aligning roller bearing is selected, can bear larger axial and radial loads, and is suitable for heavy load.
As shown in fig. 6, the main raceway 21 is separate from the wind power main shaft 12, and the main raceway 21 is fixed to the wind power main shaft 12 by screws. The main roller path 21 and the main shaft bearing assembly can be debugged well before the wind power main shaft 12 is installed, the main roller path 21 is directly fixed on the wind power main shaft 12 in the later period, the installation procedure is greatly simplified, the installation is convenient and quick, the high-altitude operation time is shortened, and the safety is improved.
The spindle brackets 11 are arranged in two, and the two spindle brackets 11 are arranged in parallel. The two spindle supports 11 can effectively improve stability.
As shown in fig. 7 to 11, the blade bearing assembly includes a variable pitch shaft 33, the variable pitch shaft 33 is fixed on an inner circular surface of the blade seat 31, an axis of the variable pitch shaft 33 is perpendicular to an axis of the blade seat 31, the variable pitch shaft 33 is annularly arranged around the axis of the blade seat 31, and an upper ring and a lower ring are parallelly arranged; a pitch bearing 35, wherein an inner ring of the pitch bearing 35 is fixed on the pitch shaft 33; the pitch roller 34 is fixed on the outer ring of the pitch bearing 35; the paddle seat 31 is fixed on the hub 13, the paddle seat 31 is rotatably provided with a paddle changing turntable 32, the outer circular surface of the paddle changing turntable 32 is provided with paddle changing raceways 321, the paddle changing rollers 34 are respectively positioned at two sides of the paddle changing raceways 321, the paddle changing rollers 34 are tightly pressed on the paddle changing raceways 321, and the paddle changing turntable 32 is provided with paddles.
The pitch roller 34 limits the rotation of the pitch turntable 32 on the blade seat 31, thereby realizing the replacement of the ultra-large bearing.
The two sides of the pitch roller path 321 are respectively provided with a pitch roller 34, so that the pitch bearing 35 can be effectively prevented from moving, and the axial bearing capacity is provided, so that the service life of the bearing is effectively ensured.
The pitch roller 34 is a conical roller, the cross section of the pitch roller path 321 is isosceles triangle, and the pitch roller path 321 is matched with the pitch roller 34.
The conical roller can improve positioning accuracy, effectively ensure that the blade rotates around the axis of the blade seat 31, and prevent radial displacement from being found.
The pitch bearing 35 is one or any two or more of a deep groove ball bearing, a self-aligning ball bearing, an angular contact bearing, a self-aligning roller bearing, and a double-row tapered roller bearing. The deep groove ball bearing, the self-aligning ball bearing, the angular contact bearing, the self-aligning roller bearing and the double-row tapered roller bearing can bear axial and radial forces at the same time, and the use requirements of the bearing are met.
Furthermore, the self-aligning roller bearing is selected, can bear larger axial and radial loads, and is suitable for heavy load.
An upper bearing mounting hole and a lower bearing mounting hole are respectively arranged on the pitch turntable 32, the upper bearing mounting hole penetrates through one side of the pitch roller path 321, and the lower bearing mounting hole penetrates through the other side of the pitch roller path 321; the device also comprises a variable pitch upper dismounting rollaway nest 36 and a variable pitch lower dismounting rollaway nest 37; the pitch upper dismounting rollaway nest 36 is arranged in an upper bearing mounting hole, and the pitch upper dismounting rollaway nest 36 and the pitch rollaway nest 321 form a complete pitch rollaway nest 321; the pitch lower dismounting roller path 37 is arranged on the lower bearing mounting hole, and the pitch lower dismounting roller path 37 and the pitch roller path 321 form a complete pitch roller path 321.
The upper bearing mounting hole passes through one side of the pitch race 321 and the lower bearing mounting hole passes through the other side of the pitch race 321, thereby reducing the partition of the race and improving the service lives of the race and the bearing.
The variable pitch upper dismounting rollaway nest 36 and the variable pitch lower dismounting rollaway nest 37 are arranged in a staggered manner, so that the stress of the variable pitch upper dismounting rollaway nest 36 and the variable pitch lower dismounting rollaway nest 37 can be reduced, the complete interruption of the variable pitch rollaway nest 321 is avoided, and the variable pitch upper dismounting rollaway nest 36 and the variable pitch lower dismounting rollaway nest 37 are effectively prevented from falling off.
The upper and lower bearing mounting holes facilitate mounting of pitch rollers 34 between pitch rotor disk 32 and blade mount 31. When the blade bearing assembly is installed or replaced, the upper assembly and disassembly roller path 36 and the lower assembly and disassembly roller path 37 of the variable blade are disassembled, the variable blade turntable 32 is rotated, the variable blade bearing assembly is installed, the variable blade turntable is rotated after the variable blade bearing assembly is aligned with the upper bearing mounting hole and the lower bearing mounting hole, the upper bearing mounting hole and the lower bearing mounting hole are aligned with the other variable blade shaft 33, then the blade bearing assembly is continuously installed, and after the installation of the blade bearing assembly is completed, the upper assembly and disassembly roller path 36 of the variable blade and the lower assembly and disassembly roller path 37 of the variable blade are installed.
During maintenance, only the damaged bearing needs to be replaced, and the adopted bearing is a standard product, so that the cost is low, the service life is long, and the bearing can be disassembled and assembled in the engine room during maintenance, so that the bearing replacement is simple and convenient.
As shown in fig. 12 to 14, the rack bearing assembly includes a rack shaft 42, the rack shaft 42 is fixed on an inner circular surface of the rack seat 41, an axis of the rack shaft 42 is perpendicular to an axis of the rack seat 41, the rack shaft 42 is annularly arranged around the axis of the rack seat 41, and upper and lower rings are parallelly arranged; a frame bearing 43, an inner ring of the frame bearing 43 being fixed on the frame shaft 42; the frame roller 44, the frame roller 44 is fixed on the outer ring of the frame bearing 43; the frame seat 41 is fixed at the top of the tower 15, the frame turntable 45 is rotatably arranged on the frame seat 41, the frame rollaway nest 451 is arranged on the outer circular surface of the frame turntable 45, the frame rollers 44 are respectively positioned at two sides of the frame rollaway nest 451, the frame rollers 44 are tightly pressed on the frame rollaway nest 451, and the frame turntable 45 is fixed at the bottom of the host frame 14.
The frame roller 44 is a conical roller, the cross section of the frame roller path 451 is isosceles triangle, and the frame roller path 451 is matched with the frame roller 44.
The frame turntable 45 is respectively provided with an upper frame bearing mounting hole and a lower frame bearing mounting hole, the upper frame bearing mounting hole penetrates through one side of the frame rollaway nest 451, the lower frame bearing mounting hole penetrates through the other side of the frame rollaway nest 451, and the upper frame bearing mounting holes and the lower frame bearing mounting holes are arranged in a staggered manner; the device also comprises a rack upper dismounting rollaway nest 46 and a rack lower dismounting rollaway nest 47; the upper frame dismounting rollaway nest 46 is arranged in the upper frame bearing mounting hole, and the upper frame dismounting rollaway nest 46 and the frame rollaway nest 451 form a complete frame rollaway nest 451; the lower frame dismounting race 47 is mounted on the lower frame bearing mounting hole, and the lower frame dismounting race 47 and the frame race 451 form a complete frame race 451.
The frame bearing 43 is one or any two or more of a deep groove ball bearing, a self-aligning ball bearing, an angular contact bearing, a self-aligning roller bearing, and a double-row tapered roller bearing. The deep groove ball bearing, the self-aligning ball bearing, the angular contact bearing, the self-aligning roller bearing and the double-row tapered roller bearing can bear axial and radial forces at the same time, and the use requirements of the bearing are met. And the bearing can be mixed with the cylindrical roller bearings respectively, so that the bearing capacity in the axial direction and the radial direction can be effectively ensured.
Furthermore, the self-aligning roller bearing is selected, can bear larger axial and radial loads, and is suitable for heavy load.
During maintenance, only the damaged bearing needs to be replaced, and the adopted bearing is a standard product, so that the cost is low, the service life is long, and the bearing can be disassembled and assembled in the engine room during maintenance, so that the bearing replacement is simple and convenient.
Claims (10)
1. Wind power rotation connecting device is characterized by comprising
The main shaft bearing assemblies are arranged in an annular array around the axis of the wind power main shaft, and are arranged between the wind power main shaft and the main shaft bracket;
The blade bearing assemblies are arranged in an annular array around the axis of the blade seat, and are arranged between the blade seat and the variable-pitch turntable;
The rack bearing assemblies are arranged in an annular array around the axis of the rack turntable, and are positioned between the rack turntable and the rack seat;
The main shaft bearing assembly comprises
The main shaft roller is provided with annular rolling grooves, and the main shaft roller is annularly arranged around the axis of the wind power main shaft in an array manner;
The driving shaft is fixed at two ends of the main shaft idler wheel and is coaxial with the main shaft idler wheel;
the inner ring of the main shaft bearing is fixed on the driving shaft and positioned at two sides of the main shaft roller; and
The bearing fixing seat is provided with a roller groove and bearing fixing grooves, the bearing fixing grooves are positioned on two sides of the bearing fixing seat, a main shaft bearing is arranged in the bearing fixing grooves, the roller groove is communicated with the bearing fixing grooves, and the main shaft roller is positioned in the roller groove;
an annular main rollaway nest is arranged on the outer circular surface of the wind power main shaft and is matched with the rollaway nest;
The wind power main shaft is positioned in the main shaft hole, the main shaft hole is provided with a support fixing groove, the support fixing groove is annularly arranged along the axis of the main shaft hole, and the bearing fixing seat is arranged in the support fixing groove;
The blade bearing assembly comprises
The variable propeller shaft is fixed on the inner circular surface of the blade seat, the axis of the variable propeller shaft is vertical to the axis of the blade seat, the variable propeller shaft is annularly arranged around the axis of the blade seat in an array manner, and an upper circle and a lower circle are arranged in parallel;
The inner ring of the variable-pitch bearing is fixed on the variable-pitch shaft; and
The pitch roller is fixed on the outer ring of the pitch bearing;
the blade seat is fixed on the hub, the blade seat is rotatably provided with a variable-pitch turntable, the outer circular surface of the variable-pitch turntable is provided with variable-pitch raceways, the variable-pitch rollers are respectively positioned at two sides of the variable-pitch raceways, the variable-pitch rollers are tightly pressed on the variable-pitch raceways, and the variable-pitch turntable is provided with blades;
the frame bearing assembly comprises
The machine frame shaft is fixed on the inner circular surface of the machine frame seat, the axis of the machine frame shaft is vertical to the axis of the machine frame seat, the machine frame shaft is annularly arranged around the axis of the machine frame seat, and an upper circle of machine frame shaft and a lower circle of machine frame shaft which are parallel are arranged;
The inner ring of the rack bearing is fixed on the rack shaft; and
The rack roller is fixed on the outer ring of the rack bearing;
the frame seat is fixed at the top of a tower, the frame turntable is rotatably arranged on the frame seat, a frame rollway is arranged on the outer circular surface of the frame turntable, frame rollers are respectively positioned at two sides of the frame rollway, the frame rollers are tightly pressed on the frame rollway, and the frame turntable is fixed at the bottom of the main frame.
2. The wind power rotating connection of claim 1, wherein,
The support fixing groove is a through groove, and the depth of the support fixing groove is larger than the thickness of the bearing fixing seat;
Still include the fixing base baffle, the fixing base baffle is installed at the both ends of main shaft support, and the fixing base baffle is located the both ends of support fixed slot, pass through bolted connection between fixing base baffle and the bearing fixing base.
3. A wind power swivel joint according to claim 2, wherein,
The device also comprises an adjusting block, wherein an adjusting inclined plane is arranged on the adjusting block, and the adjusting block is positioned in the bracket fixing groove and is positioned between the bottom of the bracket fixing groove and the bearing fixing seat; and
The adjusting screw is arranged on the fixed seat baffle plate, and the end part of the adjusting screw is pressed at one end of the adjusting block;
the bearing fixing seat is provided with a sliding inclined plane, the sliding inclined plane is matched with the adjusting inclined plane, the adjusting inclined plane is in sliding connection with the sliding inclined plane, and the adjusting screw is used for pushing the adjusting block to compress the bearing fixing seat.
4. The wind power rotating connection of claim 1, wherein,
The main shaft bearing is any one or any two or more than any two of a deep groove ball bearing, a self-aligning ball bearing, an angular contact bearing, a self-aligning roller bearing, a double-row tapered roller bearing, a thrust ball bearing, a thrust cylindrical roller bearing and a thrust tapered roller bearing.
5. The wind power rotating connection of claim 1, wherein,
The main roller path and the wind power main shaft are split, and the main roller path is fixed on the wind power main shaft through screws.
6. The wind power rotating connection device according to claim 1, wherein the pitch roller is a conical roller, the cross section of the pitch roller path is isosceles triangle, and the pitch roller path is matched with the pitch roller.
7. The wind power rotating connection of claim 1, wherein,
The pitch bearing is one or any two or more than any two of a deep groove ball bearing, a self-aligning ball bearing, an angular contact bearing, a self-aligning roller bearing and a double-row tapered roller bearing.
8. The wind power rotation connection device according to claim 1, wherein an upper bearing mounting hole and a lower bearing mounting hole are respectively arranged on the pitch turntable, the upper bearing mounting hole penetrates through the pitch raceway, and the lower bearing mounting hole penetrates through the pitch raceway;
the device also comprises a variable-pitch upper dismounting rollaway nest and a variable-pitch lower dismounting rollaway nest;
the variable-pitch upper dismounting rollaway nest is arranged in the upper bearing mounting hole, and the variable-pitch upper dismounting rollaway nest and the variable-pitch rollaway nest form a complete variable-pitch rollaway nest;
The lower variable-pitch dismounting rollaway nest is arranged on the lower bearing mounting hole, and the lower variable-pitch dismounting rollaway nest and the variable-pitch rollaway nest form a complete variable-pitch rollaway nest.
9. The wind power rotating connection of claim 1, wherein the frame roller is a tapered roller, the cross section of the frame roller path is isosceles triangle, and the frame roller path is matched with the frame roller.
10. The wind power rotating connection of claim 1, wherein,
An upper frame bearing mounting hole and a lower frame bearing mounting hole are respectively arranged on the frame turntable,
The upper frame bearing mounting hole penetrates through the frame roller path, and the lower frame bearing mounting hole penetrates through the frame roller path;
The device also comprises a rack upper dismounting rollaway nest and a rack lower dismounting rollaway nest;
The upper dismounting rollaway nest of the stand is arranged in the upper stand bearing mounting hole, and the upper dismounting rollaway nest of the stand and the stand rollaway nest form a complete stand rollaway nest;
the lower frame dismounting rollaway nest is arranged on the lower frame bearing mounting hole, and the lower frame dismounting rollaway nest and the frame rollaway nest form a complete frame rollaway nest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910289433.6A CN109899251B (en) | 2019-04-11 | 2019-04-11 | Wind power rotation connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910289433.6A CN109899251B (en) | 2019-04-11 | 2019-04-11 | Wind power rotation connecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109899251A CN109899251A (en) | 2019-06-18 |
| CN109899251B true CN109899251B (en) | 2024-04-19 |
Family
ID=66955675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910289433.6A Active CN109899251B (en) | 2019-04-11 | 2019-04-11 | Wind power rotation connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109899251B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008032147A (en) * | 2006-07-31 | 2008-02-14 | Ntn Corp | Rotating shaft supporting structure of wind power generator |
| CN101280809A (en) * | 2008-05-26 | 2008-10-08 | 潍坊瑞其能电气有限公司 | Drive axle rolling type radial support apparatus |
| EP3091255A1 (en) * | 2015-05-07 | 2016-11-09 | Siemens Aktiengesellschaft | Planetary gear unit |
| CN210290019U (en) * | 2019-04-11 | 2020-04-10 | 昆山新盟能源技术有限公司 | Wind power rotation connecting device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008256168A (en) * | 2007-04-09 | 2008-10-23 | Jtekt Corp | Rolling bearing cage and wind power generation bearing equipped therewith |
| EP3219984B1 (en) * | 2016-03-14 | 2019-01-02 | Siemens Aktiengesellschaft | Sliding bearing arrangement for a wind turbine |
-
2019
- 2019-04-11 CN CN201910289433.6A patent/CN109899251B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008032147A (en) * | 2006-07-31 | 2008-02-14 | Ntn Corp | Rotating shaft supporting structure of wind power generator |
| CN101280809A (en) * | 2008-05-26 | 2008-10-08 | 潍坊瑞其能电气有限公司 | Drive axle rolling type radial support apparatus |
| EP3091255A1 (en) * | 2015-05-07 | 2016-11-09 | Siemens Aktiengesellschaft | Planetary gear unit |
| CN210290019U (en) * | 2019-04-11 | 2020-04-10 | 昆山新盟能源技术有限公司 | Wind power rotation connecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109899251A (en) | 2019-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8613554B2 (en) | PDC bearing for use in a fluid environment | |
| EP2863076B1 (en) | Composite sliding bearing and wind-powered electricity generation device using this bearing | |
| US10260484B2 (en) | Bearing arrangement | |
| US9915246B2 (en) | Wind turbine rotor shaft arrangement | |
| CN105464897B (en) | Wind turbine rotor shaft arrangement | |
| EP3428448B1 (en) | Compound main bearing arrangement for a wind turbine | |
| US10197093B2 (en) | Bearing arrangement | |
| CN113294443B (en) | Bearing device and wind power generation equipment | |
| CN210290019U (en) | Wind power rotation connecting device | |
| CN112855763A (en) | Bearing device and wind power generation equipment | |
| CN109899251B (en) | Wind power rotation connecting device | |
| CN207961266U (en) | A kind of bearing support shafting of energy aligning | |
| WO2015022311A1 (en) | Bearing arrangement of radial and thrust spherical bearings | |
| CN216951332U (en) | Bearing device and wind power generation equipment | |
| CN214578326U (en) | Bearing device and wind power generation equipment | |
| EP2500590B1 (en) | Turning structure and horizontal wind turbine using same | |
| CN216715003U (en) | Tapered roller bearing with flexible retainer | |
| GB2612486A (en) | Self-aligning roller bearing of asymmetric structure | |
| CN112454304A (en) | Rotatable platform capable of being positioned during assembling for pump | |
| WO2015057126A1 (en) | Wind turbine rotor bearing arrangement | |
| CN201198875Y (en) | Rolling axial supporting device of transmission shaft | |
| CN219918577U (en) | Portable positioning device | |
| CN219888355U (en) | Dynamic balancing mechanism for impeller of axial flow fan | |
| CN211008950U (en) | Wind wheel hub assembly for off-grid wind driven generator | |
| DK202270570A1 (en) | A yawing system of a wind turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191101 Address after: No. 600 Yuyang Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Applicant after: Kunshan Xinmeng Energy Technology Co.,Ltd. Address before: 200 000 No. 57, Lane 1, 588, Jinfeng Road, Minhang District, Shanghai Applicant before: Wei Li |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240326 Address after: 410000, No. 125, 126, 127, 128, 129, 134, 1st Floor, Building SY6, Provence B, Jiangshan Dijing Community, No. 99 Bachelor Road, Xueshi Street, Yuelu District, Changsha City, Hunan Province Applicant after: Hunan Yuchengchang Energy Technology Co.,Ltd. Country or region after: China Address before: No. 600, Yuyang Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province, 215000 Applicant before: Kunshan Xinmeng Energy Technology Co.,Ltd. Country or region before: China |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |